body {
  background: #cecdfc;
  margin: 0;
}
#yl {
  margin-top: 57px;
}
#yl1 img {
  width: 100%;
  height: 500px;
}
#yl2 {
  background: #adc8e7;
  text-align: center;
  height: 500px -20px;
}
#yl li {
  text-align: center;
}
#nr {
  background: #f1fafa;
  margin-top: 10px;
}
#nr h3 {
  text-align: center;
}
.nav img {
  width: 100%;
  height: 400px;
  margin-top: 50px;
}
#nr img {
  width: 80%;
  height: 200px;
}
#nr1 {
  margin-top: 10px;
  background: white;
}
#nr2 {
  margin-top: 50px;
  margin-bottom: 150px;
}
hr {
  color: black;
  size: 10px;
  width: 100%;
  height: 10px;
}
#foot {
  margin-top: 10px;
  text-align: center;
}
